A water audit focuses on what?

Correct answer: Sources, consumption, and wastage of water

A water audit is a systematic assessment of the movement and use of water in a building, school, farm, organisation, or defined area. The governing concept is water efficiency through evidence-based checking. It normally considers the sources of water, quantities consumed, major uses, leaks, losses, wastewater, and possible conservation or reuse measures. Therefore, option A is correct because it identifies the sources, consumption, and wastage that an audit is designed to examine. Checking leaks is important but represents only one part of the wider review. Wall colour, classroom-bell maintenance, and computer-password security may matter for other purposes, but they do not measure water management or water efficiency.